Bowers & Wilkins DIAMOND 800 Serie Manual Del Usuario página 6

4. Fine Tuning and Running In
Before fine tuning, make sure that all the connections
in the installation are correct and secure.
Moving the speakers further from the walls will
generally reduce the volume of bass. Space behind the
speakers will also help to create an aural impression
of depth. Conversely, moving the speakers closer to
the walls will increase the volume of bass. If you want
to reduce the volume of bass without moving the
speakers further from the wall, fit the foam plugs or,
for less severe bass reduction, the foam rings in the
port tubes (above). Try assessing the impact of
fitting the foam plug / ring in one of the ports before
assessing the impact of fitting the foam plugs / rings in
both ports.
If the bass seems uneven with frequency this will most
probably be due to resonance modes in the listening
room. Even small changes in the position of the
speakers or the listening position can have a profound
effect on how these resonances affect the sound.
Try moving the listening position or locating the
speakers along a different wall. The presence and
position of large pieces of furniture can also influence
resonance modes.
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If the central image lacks focus, try moving the
speakers closer together or angling them inward
so that they point at a location just in front of the
listening position.
If the sound is too bright, increasing the amount of
soft furnishing in the room (heavier curtains for
example) may help balance the sound. Conversely,
reducing the amount of soft furnishing may help
brighten a dull sound.
For the most discerning listening, remove the bass/
midrange grilles by gripping around their edges and
gently pulling them away from the cabinet.
The performance of your speaker may change subtly
during the initial listening period. If it has been stored
in a cold environment, the damping compounds and
suspension materials of the drive units will take some
time to recover their correct mechanical properties.
The drive unit suspension will also loosen up during
the first hours of use. The time taken for the speaker to
achieve its intended performance will vary depending
on previous storage conditions and how it is used.
As a guide, allow up to a week for the temperature
effects to stabilise and 15 hours of average use for
the mechanical parts to attain their intended design
characteristics.
5. Aftercare
The cabinet surfaces will usually only require dusting.
We recommend you use the cloth supplied with the
product. If you wish to use an aerosol or other cleaner,
apply the cleaner onto the cloth, not directly onto the
product and test a small area first, as some cleaning
products may damage some of the surfaces. Avoid
products that are abrasive, or contain acid, alkali or
anti-bacterial agents. Do not use cleaning agents
on the drive units. Avoid touching the drive units as
damage may result.
Whenever Bowers & Wilkins speakers are finished
in real wood, the finest veneers are selected and
treated with an ultra-violet resistant lacquer to
minimise changes in colour over time. Nevertheless,
like all natural materials, the veneer will respond to
its environment and a degree of colour change is to
be expected. Colour differences may be rectified by
exposing all the veneer surfaces equally and evenly
to sunlight until the colour is uniform. This process
can take several days or even weeks, but may be
accelerated by careful use of an ultra-violet lamp.
Wood veneered surfaces should also be kept away
from direct sources of heat such as radiators and
warm air vents in order to minimise the possibility
of the wood veneer cracking.
The tweeter housing has a textured surface finish that
may collect superficial marks when handled and should
be cleaned by wiping the supplied cleaning cloth
around the housing, in-line with the surface texture.